op toledo



Reissue d Mar. 1, 1927.

UNITED STATES PATENT OFFICE.

CLYDE C. MANCHESTER, OF TOLEDO, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

THE AYLINGE: BEICHERT COMPANY, OF TOLEDO, OHIO, A CORPORATION' OF OHIO(INCORPORATED 1926).

- ETAL FLOAT.

Original No. 1.567,968, dated December 29, 1925, Serial No. 17,468,filed March 23, 1925. Application for reissue filed August 13, 1926.

utilization of a relatively short plug so as to savematerial and Weight.

Another object is the provision of a plug in which the metal thrown upby the riveting tool is all located at the periphery of 7 the plug,whereby a minimum of material may be employed between the inner face ofthe plug and the threaded socket for the float rod. I

Still another object is the provision of a pair of continuous annularfloat gripping surfaces on the plug between which surfaces is receivedthe rebent edge of the float shell so that the latter may be compressedall around the plug producing a continuous fluid tight acking.

Other ob ects, and objects relating to details of manufacture, willappear as I proceed with the description of that embodiment of theinvention which, for the purposes of the present application, I haveillustrated in the accompanying drawing, in which Figure I is anillustration of a washer used in connection with my invention, andshowing the same in front perspective and diametrical section.

Fig. II is a sectional view through a portion of a float showing the rodholding plug in place, but not riveted to the float shell.

Fig. III is a similar View showing the float after the rivetingoperation has been performed.

Fig. IV is an elevational view, partly in section, of a riveting toolwhich I prefer to employ in carrying out my invention.

Fig. V is an elevational view on a smaller scale of one section of themetal float with the socket 21 as is the usual practice.

Serial No. 129,064.

of a metal float, preferably stamped up out of relatively soft,non-rusting metal, such as copper or brass. The other section 11 of thefloat is joined to the first by peripheral interlocking flanges,preferably with a rubber gasket interposed in a manner well known in theart.

The die (not shown) for stamping 10 is so formed as to punch a hole inthe central part of the section and bend themetal into an inwardlyextending, continuous, annular flange 12 (Fig. II).

The lu 13 having an inner portion 14 (Figs. II and VII) to fit snuglywithin the flange 12, is next inserted in the hole until an annularshoulder 15 extendin entirely around the plug engages with the oatshell. A washer 16, dishedto conform to the curvature of the shell isplaced over the flange 12. Then a riveting tool 17 (Fig. IV) with acircular cutting edge 18 is properly centered on the inner portion 1 1of the plug Re. a 16,564

and hammered or pressed sufficiently to turn back a flange 19, shown inFig. III, around the periphery of the plug, at the same time producingva rebend 20 of the shell metal around the edge of the washer 16.

Before it is assembled with the shell, the plug 13 is provided with ascrew threaded socket 21, extending from the outer surface of the plugto a point close to the inner surface thereof. The arm or rod 22 uponwhich the float is to be mounted, is threaded tor 1flit e attachment ofthe plug 12 to the float section 10 is, of course, performed before thetwo sections 10 and 11 are assembled together.

Heretofore it has been customary to perform the riveting operation withordinary riveting tools, which work the metal outward from the center ofthe inner end of the plug. Of course sufficient met-a1 must be providedbetween the end of the plug and the inner end of the threaded socket, sothat there will be no danger of breaking through into the socket whenthe plug is riveted. In my invention the riveting is at the periphery ofthe inner end of the plug and radially outward from the threadedsocket.Hence, there is no possibility that the riveting tool will cut throughinto the socket, and consequently the length of the plug is governedonly by the necessary length 0 the threaded socket. I therefore effect asaving in material; When the rebent edge of the float shell iscompressed between the shoulder 15 and the fiange'19 during the rivetingoperation, the relatively soft copper or brass of the shell is pressedinto close unison with these two gripping walls of the plug and with theintermediate periphery of the plug, thus effectually sealing the joint.

As will be readily understood, the locations of the shoulder and flangeon the plug might be reversed without changing the spirit of theinvention. Washer 16 might also be omitted in cases where the shellitself supplies suflic-ient rigidity.

I claim as my invention:

1. The method of securing a spud to a thin metal float, which consistsin forming the float with an inwardly flanged aperture of a dimension toclosely fit the spud, placing a heavy washer around said flangedaperture, inserting the spud into said aper ture, centering a rivetingtool with respect to the inner face of the spud, the working face ofsaid tool being adapted to spread ra dially outward the metal of thespud,and applying force to the tool to press the metal of the spudradially outward against the said washer with the flanged metal of thefloat compressed therebetween.

2. The. method of securing a spud to a thin metal float, which consistsin forming the float with an inwardly flanged aperture of a dimension toclosely fit the spud, placing a heavy washer around said flangedaperture, inserting the spud into said aperture, centering a circularriveting tool upon the inner face of the spud, the cutting edge of saidtool being of a diameter slightly less than the diameter of the innersurface of the spud, and applying force to the tool to form the outerwalls of the spud into an annular flange and to press said walloutwardly against the said washer with the flanged metal of the floatcompressed therebetween.

3. In a metal float, an attachment plug located in a hole in the floatshell, means forming a stop against inward motion of the plug, said plughaving a socket extend ing from the outer surface to a point near theinner surface thereof at the middle of the plug and a peripheral flangefor gripping the float wall around said hole, the body of said plugprojecting inwardly beyond the base of the gripping flange.

4. In combination, a metal float having a perforation, an attachmentplug having an annular shoulder bearing against one side of said floataround said perforation, said plug containing an axial socket extendingfrom its outer surface to a point near its inner surface and aperipheral flange for gripping the float wall around said hole, the bodyof said plug projecting inwardly beyond the base of said grippingflange.

5. In a metal float, an attachment plug located in a hole in the floatshell, means forming a stop against inward motion of the plug and aperipheral flange on the plug gripping the float wall around said holevsaid plug having an axial socket extending from the outer surfaceinwardly to a point short of the inner end of the plug but be yond thebase of said peripheral flange.

In testimony whereof, I aflix my signature.

CLYDE C. MANCHESTER.

